Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
June 20, 2022
Submitted
July 27, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Intercostal
Condition
Cracked
Location
Fwd Fuselage
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK ON PASSENGER CABIN FWD INTERCOSTAL AT RBL 31 BS 312+5; BS 312+11. / [01] CRACKED ON PASSENGER CABIN FWD INTERCOSTAL AT RBL 31 BS 312+5; BS 312+11; WL 208 P/N 141A5410-12 ; FOUND TO BE OUT LIMITS DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C .;[02] VERIFIED CORRECTIVE ACTION #1;[03] REMOVED INTERCOSTAL IAW SRM 51-40-02.<BR><BR>RECEIVED NEW INTERCOSTAL P/N 141A5410-12; LOT: 234228/033194. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 141A5400.<BR><BR>REQUIRE OK TO INSTALL.;[04] VERIFIED CORRECTIVE ACTION STEP 3. VERIFIED OK TO INSTALL.;[05] INSTALLED NEW INTERCOSTAL IAW SRM 51-40-02 AND DWG 141A5400;[06] VERIFIED CORRECTIVE ACTION STEP 5.;[07] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

More about the Boeing 737-7H4